Zuko, Firebending Master + Aggravated Assault + Upwelling

Prerequisites

• An opponent cannot block and kill Zuko.
• You have at least five experience counters.

Steps

1. 1Declare Zuko as an attacker, triggering its ability, adding an amount of equal to the number of experience counters you have.
2. 2Move to your postcombat main phase. You will not lose the mana due to Upwelling.
3. 3Activate Aggravated Assault by paying , causing you to untap all creatures you control and to get an additional combat and main phase after this one.
4. 4Repeat.

Effects

• Infinite combat phases
• Infinite mana creatures you control can produce
• Infinite red mana
• Infinite untap of creatures you control